Another of these factors is infertility. Generally, female gorillas mature at 10â12 years of age (or earlier at 7â8 years) and their male counterparts mature more slowly, rarely strong and dominant enough to reproduce before 15â20 years of age.
A herniated disk, sometimes (incorrectly) called a slipped disk, is a common cause of severe back pain and sciatica. A disk in the lumbar area becomes herniated when it ruptures or thins out, and degenerates to the point that the gel within the disk (the nucleus pulposus) pushes outward.
These symptoms impact at the most structurally unstable locations or the weakest links in the individual's kinetic chain relative to the repetitive activity. For example, over pronation, resulting from poor structural mechanics, can lead to plantar fasciitis, shin splints, or knee problems. All too often, over pronation is incorrectly identified as the cause of these problems, when in fact, as has been demonstrated, it is only a symptom.